Identification and Treatment of Collapse and Mud Inrush Caused by Deep Karst Trough in Tunnels

<div>Location and geology maps of the study area. (a) Location of the study area; (b) longitudinal geological profiles of the Qiyueshan Tunnel [<a href="/journals/geofluids/2023/3007313/#B32">32</a>].</div>

Geofluids

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Figure 1

Figure 1: Identification and Treatment of Collapse and Mud Inrush Caused by Deep Karst Trough in Tunnels 